Stabilizer for road graders



April 12, 1932" E. E. BURNS STABILIZER FOR ROAD GRADERS Filed April 24,1931 2 Sheets-Sheet Inventor flllomey April 12, 1932. E. E. BURNS1,853,115

STABILIZER FOR ROAD GRADERS 2 Sheets-Sheet 2 Filed April 24, 1931Invenlor Z H F Patented Ap 12, 1932 umrsn stares PATENT I ore-1c fEUGENE E. BURNS, OFHARTLEY, IOWA.

s'mBInIzER- non norm. dee ens" Application filed April 24,

5 to the mold board, blade or beam of the road.

maintainer and capable of sliding, over the level surface of the road inthe rear of the maintainerv blade for maintaining the blade 7 at theproper plane to insurethe cutting of lo the blade at an even and uniformdepth so that the finished surface of the graded road will be plain andvsmooth,and free of all corrugations or ruts.

The nature ofthe invention, together with 15 many other objects andadvantages will be.

. posedon the upper side of a substantially elongated rectangular blockor body 18 conapparentfrom a study of the following de scription, takenin connection with the ac companying drawings wherein:

Figure 1 is a pla n view of aportion of a road grader showing myinvention as ap plied to the maintainer blade of the road maintainerr Ip Figure 2 is a plan view of the stabilizer or, attachment as applied toone end of the maintainer blade A Figure 3 is a rearelevation'of an-endportion of the maintainer blade for more clearly illustrating theinvention as. applied thereto. Figure 4 is adetail sectional elevationalview-taken substantially on the lineH of Figure 3.

Figure 5 is a side elevational View of the stabilizer per se, certainparts being broken away. 5 p

l/Vith; reference more in detail'to the drawings,it will" be seen that 5designates a portion of a frameof a conventional type of roadmaintainer, numeral 6 indicates the carrier bar which carries the moldboard 7,'the latterbeing provided at its lower edge and on the frontside thereof with the maintainer blade 8. The mold board? adjacent thelower edgethereof has projecting rearwardly a 1931. serial to. 532,651.

Since the stabilizers 10 are identical in. construction, it is thoughtthat a detail description of one will teach the construction of theother.

"Each stabilizer 10, comprises anangular 55 supporting bracket 11 thatincludes an end portion- 12 inclined in the direction of or toward themold board 7 and at its terminal supported on the upper end of aVertical pivot pin 13. The bracket 11 includes a downiva rdly andrearwardly inclined end portion 14 terminating in an apertured lug 15,for accommodating an attaching bolt 16.

"The pivot pin 13 rises from the forward end of ajshoe carrying plate 17that is dis stituting a shoe, the bottom orlower face of whichis adaptedto ride over the surface of the'graded road rearwardly of the blade 8.The lower-face of the shoe 18 is substantially flush with, or on a planewith the plane of the lower edge" of the blade 8.

The plate 17 at its rear end is secured to the shoe 18 through themedium of the bolt 16 which is threadedly engaged withthe shoe 18 andextends through the corresponding end of plate 17 and the end of thebracket 11. A second bolt 19 has one end threaded inthe shoe-18 adjacentthe forward end of the shoe and the upper end "of the bolt 19 extendsthroughthe plate 17 and has a nut 20 thread-" edly'engaged with saidupper end.

Bolted as at 21 to the mold board 7 beneath the rib'9' is abar 22 thattapers toward its ends; Intermediate its ends, the bar 22 is providedwitha vertical opening for accom-, modating the pivotpiu 13'so that asisapparent the stabilizer 10 is pivotally supported rearwardly ofthe moldboard for swinging movement laterally withrespect to the direc-v tion of-travel' of the grader-.

In actual practice then, it will be seen that r with a stabilizer 10located rearwardly of the mold board inoperative relation to the blade 98 and adj acent opposite ends of the mold board,that the shoes 18 of thestabilizerswill I travel over the surface of the graded road even withthe lower edge of the maintainer blade rearwardly of the bladethusprevent- 8 ing either end of the blade cutting at a greater depththan the other end of the blade thereby insuring the blade beingmaintained at a uniform cutting depth throughout its length. Thisfurther insures the blade cutting or scraping any rises or ridges sothat upon completion of the grading operation the treated surface willbe level and smooth. Further the shoe 18 travelling rearwardly of themaintainer blade serves of itself to level and smooth the road surface.

It will be further appreciated, that an attachment of this characterwill increase the life of the blade and will reduce friction of theblade on the road bed.

Even though I have herein shown and described the preferred embodimentof the invention it is to be understood that the same is susceptible ofchanges, modifications and improvements coming within the scope of theappended claims.

Having thus described my invention, what I claim as new is:

1. A stabilizer for the maintainer blade of a road maintainer, and incombination, a mold board, a maintainer blade carried by said moldboard, a plate, a pivot pin rising from one end of the plate, a bar,means for mounting the bar on the mold board adjacent one end thereof,said bar provided with a vertical opening, and said pivot pin extendingthrough said opening, a bracket con nected at one end with the upper endof said pivot pin, means for connecting the free end of the bracket withthe free end of said plate,

and a surface engaging element mounted on said plate.

2. A stabilizer for the maintainer blade of a road maintainer, and incombination, a mold board, a maintainer blade carried by said moldboard, a plate, a pivot pin rising from one end of the plate, a bar,means for mounting the bar on the mold board adjacent one end thereof,said bar provided Wlth i a vertical opening, and said pivot pinextending through said opening, a bracket connected at one end with theupper end of said pivot pin, means for connecting the free end of thebracket with the free end of said plate,

and a surface engaging element mounted on said plate, said road engagingelement comprising a substantially elongated rectangular block havingone surface thereof substantially flush and in the same horizontal planer with the cutting edge of blade.

In testimony where I aflix my signature.

EUGENE E. BURNS.

